Linux Administrator

Role & responsibilities

Job Description Linux Administrator (L1+)

We are seeking a skilled Linux Administrator (L1+) to join our team. The candidate will be responsible for managing, maintaining, and troubleshooting Linux servers in production and non-production environments. This role requires hands-on experience with system administration, storage, and networking.

Responsibilities

• Administer and maintain Linux servers (RHEL, CentOS, Ubuntu, SUSE).
• Manage system boot processes, run-levels, and systemd services.
• Perform user and group management, sudo configuration, and access control.
• Configure and maintain storage solutions including LVM, RAID, and filesystem management..
• Configure and troubleshoot networking services (NFS, Samba, FTP, SSH).
• Manage firewall rules (iptables, firewalld, nftables) and ensure network connectivity.
• Monitor and analyze system performance (CPU, memory, I/O, and processes).
• Review system logs and troubleshoot incidents using tools such as journalctl and /var/log.
• Schedule and manage jobs using cron and systemd timers.
• Apply OS patches and security updates as per standards.
• Configure and manage  security hardening.
• Develop and maintain automation scripts in Bash for routine tasks.
• Provide L1-level troubleshooting support and escalate to L2 when necessary.

Required Skills & Experience

• 1–2 years of experience as a Linux System Administrator.
• Strong knowledge of Linux operating systems (RHEL, CentOS, Ubuntu, or SUSE).
• Experience in filesystem management, like  LVM.
• Solid understanding of networking, firewalls, and troubleshooting tools (ping, traceroute, dig, netstat, ss).
• Experience in system monitoring and performance analysis.
• Ability to work independently and handle incidents in a production environment

You reach on rashmi.ghag@3i-infotech.com